MC908QC16CDZE Freescale Semiconductor, MC908QC16CDZE Datasheet - Page 85

• Manufacturer Part Number: MC908QC16CDZE
• Description: IC MCU 8BIT 16K FLASH 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QC16CDZE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: HC08QC
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: ESCI/SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 6
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10-ch x 10-bit
• For Use With: DEMO908QC16 - BOARD DEMO FOR MC908QC16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Chapter 8
Keyboard Interrupt Module (KBI)
8.1 Introduction
The keyboard interrupt module (KBI) provides independently maskable external interrupts. The KBI
shares its pins with general-purpose input/output (I/O) port pins. See
shared pins.
8.2 Features
Features of the keyboard interrupt module include:
8.3 Functional Description
The keyboard interrupt module controls the enabling/disabling of interrupt functions on the KBI pins.
These pins can be enabled/disabled independently of each other.
Freescale Semiconductor
•
•
•
•
•
•
Keyboard interrupt pins with separate keyboard interrupt enable bits and one keyboard interrupt
mask
Programmable edge-only or edge and level interrupt sensitivity
Edge sensitivity programmable for rising or falling edge
Level sensitivity programmable for high or low level
Pullup or pulldown device automatically enabled based on the polarity of edge or level detect
Exit from low-power modes
KBI0
KBIx
KBIP0
KBIPx
1
0
1
0
VECTOR FETCH
INTERNAL BUS
S
S
DECODER
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 5
KBIE0
TO PULLUP/
PULLDOWN ENABLE
TO PULLUP/
PULLDOWN ENABLE
KBIEx
Figure 8-1. Keyboard Interrupt Block Diagram
RESET
ACKK
MODEK
V
DD
KBI LATCH
D
CK
CLR
Q
Figure 8-2
IMASKK
SYNCHRONIZER
for port location of these
KEYF
KEYBOARD
INTERRUPT
REQUEST
85